Ocular larva migrans (OLM), also known as ocular toxocariasis, is the ocular form of the larva migrans syndrome that occurs when Toxocara canis (dog roundworm) larvae invade the eye. They may be associated with visceral larva migrans. Unilateral visual disturbances, strabismus, and eye pain are the most common presenting symptoms.
Ocular larva migrans
Other names
Ocular toxocariasis
Puppies are a major source of environmental contamination with Toxocara eggs
The disease presents with an eosinophilic granulomatous mass, most commonly in the posterior pole of the retina. The granulomatous mass develops around the entrapped larva, in an attempt to contain the spread of the larva.[citation needed]
ELISA testing of intraocular fluids has been demonstrated to be of great value in diagnosing ocular toxocariasis.[citation needed]
Differential diagnosisedit
The retinal lesion can mimic retinoblastoma in appearance, and mistaken diagnosis of the latter condition can lead to unnecessary enucleation.
Complicationsedit
The eye involvement can cause the following inflammatory disorders:[citation needed]
In contrast to visceral larva migrans, ocular toxocariasis usually develops in older children or young adults with no history of pica. These patients seldom have eosinophilia or visceral manifestations.
Referencesedit
External linksedit
February 27, 2024
ocular, larva, migrans, also, known, ocular, toxocariasis, ocular, form, larva, migrans, syndrome, that, occurs, when, toxocara, canis, roundworm, larvae, invade, they, associated, with, visceral, larva, migrans, unilateral, visual, disturbances, strabismus, p. Ocular larva migrans OLM also known as ocular toxocariasis is the ocular form of the larva migrans syndrome that occurs when Toxocara canis dog roundworm larvae invade the eye They may be associated with visceral larva migrans Unilateral visual disturbances strabismus and eye pain are the most common presenting symptoms Ocular larva migransOther namesOcular toxocariasisPuppies are a major source of environmental contamination with Toxocara eggs Contents 1 Diagnosis 1 1 Differential diagnosis 2 Complications 3 Epidemiology 4 References 5 External linksDiagnosis editThe disease presents with an eosinophilic granulomatous mass most commonly in the posterior pole of the retina The granulomatous mass develops around the entrapped larva in an attempt to contain the spread of the larva citation needed ELISA testing of intraocular fluids has been demonstrated to be of great value in diagnosing ocular toxocariasis citation needed Differential diagnosis edit The retinal lesion can mimic retinoblastoma in appearance and mistaken diagnosis of the latter condition can lead to unnecessary enucleation Complications editThe eye involvement can cause the following inflammatory disorders citation needed endophthalmitis uveitis chorioretinitisEpidemiology editIn contrast to visceral larva migrans ocular toxocariasis usually develops in older children or young adults with no history of pica These patients seldom have eosinophilia or visceral manifestations References editExternal links edit Retrieved from https en wikipedia org w index php title Ocular larva migrans amp oldid 1183463997, wikipedia, wiki, book, books, library,
